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Fast least-squares prestack time migration via accelerating the explicit calculation of Hessian matrix with dip-angle Fresnel zone

文献类型：期刊论文

作者Jiang, Bo-Wu3,4,5,6,7; Zhang, Jiang-Jie2; Zhang, Hao1; Lu, Wen-Kai3,4,5,6
刊名PETROLEUM SCIENCE
出版日期2022-06-01
卷号19期号:3页码:1031-1047
关键词Prestack time migration Fresnel zone Hessian Least squares migration Migrated gather
ISSN号1672-5107
DOI10.1016/j.petsci.2021.12.017
英文摘要Amplitude versus offset analysis is a fundamental tool for determining the physical properties of reservoirs but generally hampered by the blurred common image gathers (CIGs). The blurring can be optimally corrected using the blockwise least-squares prestack time migration (BLS-PSTM), where common-offset migrated sections are divided into a series of blocks related to the explicit offset-dependent Hessian matrix and the following inverse filtering is iteratively applied to invert the corresponding reflectivity. However, calculating the Hessian matrix is slow. We present a fast BLS-PSTM via accelerating Hessian calculation with dip-angle Fresnel zone (DFZ). DFZ is closely related to optimal migration aperture, which significantly attenuates migration swings and reduces the computational cost of PSTM. Specifically, our fast BLS-PSTM is implemented as a two-stage process. First, we limit the aperture for any imaging point with an approximated the projected Fresnel zone before calculating the Hessian matrix. Then, we determine whether a seismic trace contributes to the imaging point via DFZ during calculating the Hessian matrix. Numerical tests on synthetic and field data validate the distinct speedup with higher-quality CIGs compared to BLS-PSTM. (C) 2021 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.
WOS关键词POYNTING VECTOR ; INVERSION ; SHOT
资助项目National Key Research and Development Program of China[2018YFA0702501] ; NSFC[41974126] ; NSFC[41674116] ; NSFC[42004101] ; China Postdoctoral Science Foundation[2020M680516]
WOS研究方向Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000841174200002
出版者KEAI PUBLISHING LTD
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/108420]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Lu, Wen-Kai
作者单位1.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China
3.Tsinghua Univ, Dept Automat, Beijing 100084, Peoples R China
4.Beijing Natl Res Ctr Informat Sci & Technol BNRis, Beijing 100084, Peoples R China
5.State Key Lab Intelligent Technol & Syst, Beijing 100084, Peoples R China
6.Inst Artificial Intelligence THUAI, Beijing 100084, Peoples R China
7.Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Jiang, Bo-Wu,Zhang, Jiang-Jie,Zhang, Hao,et al. Fast least-squares prestack time migration via accelerating the explicit calculation of Hessian matrix with dip-angle Fresnel zone[J]. PETROLEUM SCIENCE,2022,19(3):1031-1047.
APA Jiang, Bo-Wu,Zhang, Jiang-Jie,Zhang, Hao,&Lu, Wen-Kai.(2022).Fast least-squares prestack time migration via accelerating the explicit calculation of Hessian matrix with dip-angle Fresnel zone.PETROLEUM SCIENCE,19(3),1031-1047.
MLA Jiang, Bo-Wu,et al."Fast least-squares prestack time migration via accelerating the explicit calculation of Hessian matrix with dip-angle Fresnel zone".PETROLEUM SCIENCE 19.3(2022):1031-1047.

入库方式： OAI收割

来源：地质与地球物理研究所

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